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Interior decoration board and producing technology thereof

A processing technology and decorative board technology, which is applied in the field of building and decoration materials to achieve the effects of increasing the loss of sound waves, efficiently absorbing, and broadening the frequency absorption range.

Inactive Publication Date: 2017-05-17
重庆雨帝建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of high-efficiency absorption of wide-band noise by decorative panels, the present invention provides an interior decorative panel and its processing technology

Method used

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  • Interior decoration board and producing technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A. The fiber fabric is polished in a refiner, and the refiner speed is 4000r / min;

[0024] B. Place the ground fiber fabric in a hot press for hot pressing with a hot pressing temperature of 120°C and a hot pressing time of 10 minutes;

[0025] C. Combine 2000g of hot-pressed fiber fabric, 4000g of thermoplastic styrene resin, 2000g of expanded graphite, 200g of silane coupling agent, 50g of antioxidant, 10g of foaming agent, 20g of magnesite, and 200g of adhesive according to the proportioning ratio Put it into 1000g of water-based polyurethane emulsion, and ultrasonically treat it for 50 minutes, so that the material is evenly dispersed in the emulsion, and a composite emulsion is obtained;

[0026] D. drying the prepared composite emulsion at normal temperature, extruding and granulating in a twin-screw extruder;

[0027] E. Place the pellets extruded by the twin-screw in step D in a twin-roll plastic mill and knead them. The kneading temperature of the kneader is 1...

Embodiment 2

[0030] The difference between this embodiment and Embodiment 1 is that the speed of refiner in step (1) is 5000r / min; 2500g of pressed fiber fabric, 5000g of thermoplastic styrene resin, 2000g of expanded graphite, 300g of silane coupling agent, 80g of antioxidant, 20g of foaming agent, 20g of magnesite, and 300g of adhesive are put into water-based polyurethane emulsion according to the proportion 1000g, sonicated for 55min; in step (5), the mixing temperature was 120°C, and the mixing time was 10min; 50min.

Embodiment 3

[0032] The difference between this embodiment and Embodiment 1 is that the speed of the refiner in step (1) is 6000r / min; 3000g of pressed fiber fabric, 5500g of thermoplastic styrene resin, 2500g of expanded graphite, 300g of silane coupling agent, 120g of antioxidant, 20g of foaming agent, 30g of magnesite, and 300g of adhesive are put into water-based polyurethane emulsion according to the proportion 1200g, sonicated for 60min; in step (5), the mixing temperature was 120°C, and the mixing time was 12min; 60min.

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Abstract

The invention belongs to the field of building decoration materials, and particularly relates to an interior decoration board and a producing technology thereof. Butadiene-acrylonitrile rubber has viscoelasticity, and when a sound wave exerts a periodic external force on the butadiene-acrylonitrile rubber, the relaxation process of a molecular chain of the butadiene-acrylonitrile rubber causes a lag effect that strain of the sound wave lags behind a stress, so that energy loss is caused and thus the sound waves with different frequencies are decreased; expanded graphite is roasted at high temperature into particulate graphite of which the volume is increased by 50-250 times, the particulate graphite is mingled into the butadiene-acrylonitrile rubber, and the expanded graphite is a bubble filler adopting a loose and porous structure, so that when noise runs through the decoration board made of the butadiene-acrylonitrile rubber, the sound speed in the decoration board is reduced, and thus butadiene-acrylonitrile rubber has low-frequency sound-absorbing performance and the noise absorbing frequency range is widened; fiber fabric is laminated in an expanded graphite layer, and hollow cells of the fiber fabric can reflect the sound wave of the noise in the butadiene-acrylonitrile rubber for many times so as to increase the loss of the sound wave, so that the butadiene-acrylonitrile rubber fabric can efficiently absorb broadband noise.

Description

technical field [0001] The invention belongs to the field of building decoration materials, in particular to an interior decoration board and its processing technology. Background technique [0002] Now, with the continuous acceleration of urbanization, the problem of environmental noise is more and more seriously affecting people's life, work and study. It has become one of the three major social hazards together with air pollution and water pollution. In order to effectively cut off noise, the usual solution is to use soundproofing materials. Existing sound insulation materials are generally cement concrete, glass plates, etc., and the sound insulation effect of these sound insulation materials is not very good, so the usual solution is to increase the thickness of the sound insulation materials. The problem caused by this is that the quality of the sound insulation material is too heavy, the cost is too high, and the installation process is very inconvenient. [0003] T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08L9/02C08L75/04C08L1/02C08K13/04C08K7/24B29C43/58
CPCB29C43/58B29C2043/5808B29C2043/5816C08L25/06C08L2205/035C08L2205/16C08L9/02C08L75/04C08L1/02C08K13/04C08K7/24
Inventor 李兴政
Owner 重庆雨帝建材有限公司